对于FFT的蝶形结构

讲述了全数字信号发生器部分频率值测算的表格(Full digital signal generator frequency value calculation form )

PS2的源代码VHDL语言实现，可以和计算机直接连接．做鼠标键盘接口．-PS2 source VHDL, and can be connected directly to the computer. So the mouse, keyboard interface.

AD转换的Matlab程序，将输入电压转换成时间(脉冲宽度信号)或频率(脉冲频率)，然后由定时器/计数器获得数字值(AD conversion of the Matlab program, the input voltage is converted into a time (pulse width signal) or a frequency (pulse frequency), and then to obtain a digital value by the timer/counter)

说明：  基于fpga的ad采样程序 可控制ad9226对信号进行采样(Ad9226 signal sampling can be controlled by ad9226 sampling program based on FPGA)

vhdl经典源代码――键盘接口设计，入门者必须掌握-vhdl classical source code-- the keyboard interface design, beginners must master

在MATLAB下自编实现快速傅里叶分析，(Fast fft own procedures, faster than the system call fft slowe)

QAM调制，基于FPGA的实现，包含有乘法器模块、升降余弦滤波器模块、QAM序列生成模块(QAM modulator,the implementation based on FPGA,include MUL、FIRCOS and QAM generate)

Convert Roman numerals to integers

对数计算源程序，能够在FPGA中计算某数的对数(Determined on the basis of the source, calculated in the FPGA to a certain number of log)

VHDL版的C8051核(C8051).evatronix公司的IP核-VHDL version of the C8051 core (C8051). Evatronix company s IP core